I'm panicking a little because I'm making a batch for my dad for Christmas, and something weird is happening. I've never had a contamination before, but I can't think of any other explanation. When I transferred it to the secondary it smelled a little odd, but this is my first batch as a legit partial mash so I was thinking maybe it was just still fermenting. So I went ahead and transferred it, and when I dry hopped it smelled fine. But I opened it up today to bottle and the whole surface was covered with a web of white film. It looked like egg drop soup in the beer. It doesn't look bacterial to me, but fungal maybe? What happened? and why on this batch when I've been using the same process for my last six beers?